PSYC 221 Lecture Notes - Lecture 4: Subjective Constancy, Depth Perception, Time Perception

• School: Simon Fraser University
• Department: Psychology
• Course: PSYC 221
• Professor: Thomas Spalek

Document Summary

Part 2: perceptual constancy: the world is changing and moving all the time, even though everything is moving we still know that it is the same object. We need perception to be rapid and effortless. Top down perception: cognitive, what we believe, our knowledge. We need perception to be rapid and effortless: visual perception needs to be fast, need to see things. Initial stages of object perception are bottom up. Rbc hypothesis: holds that much of object perception is bottom up. Part 1: size and depth perception: monocular getting work done with one eye. Depth information in art: leonardo window, an early drawing aid, artists have been using depth cues for centuries. When familiar size fails as a depth cue. Occlusion: something is blocking your view of the second object, so you know it"s closer. Linear perspective is a depth cue: lines converge when it gets closer to the horizon.